Differential clip for aerial ropeways, &amp;c.



PATENTED APR. 16, 1907.

Y. TAMAMURA. DIFFERENTIAL CLIP FORAIERIAL ROPEWAYS &o.

APPLICATION FILED JAN.4. 1907.

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H011 new PATENTED APR. 16, 1907.

Y. TAMAMURA. DIFFERENTIAL CLIP FOR AERIAL ROPEWAYS APPLICATION FILEDJAN. 4. 1907.

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PATENTED APR. 16, 1907.

YfTAMAMURA. DIFFERENTIAL oLIP FOR AERIAL ROPEWAYS, 8w.

APPLICATION FILED JAN. 4. 1907.

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YUSUKE TAMAMUlt-A, OF AS1110, JAPAN.

DlFFERENTiAL UMP FER AERIAL RQPEWAYS, 80c,

Specification. of Letters Patent.

Patented April 16, 1907.

Application filed January 4, 1907. Serial No. 350,846,

To all whom it may concern:

Be it known that I, YUsUKE 'lluuAMUnA, a subject oi the Emperor ofJapan, and a rcsident of Ashio, in the Province of Shiinozulre, Japan,with a post-ollice address at jishio, Province of Shimozuke, Japan, havein ven ted certain new and useful l1nprovements in Dillercntial Clipsfor Aerial liope ways and the Like, of which the following is 'aSpecification, reference being had to the ac companying drawings,forming a part hereof. My invention relates to clips or grips forengaging the hauling-rope in aerial ropeways, telpherage systems, andthe like, and particularly to those grips or clips which are operated bygravity through the weight 01 the carriage orthe carriage and itscontents.

The object of my invention is to provide a novel and ieflicient gripoperated in. a dill'erent manner from those luiretotore used and by itsnature more readily capable of adaption to various conditions met within such systems. 1. am aware that gravityoperated grips have been knownin the art; but a disadvantage ol this form ol grip is tl at ordinarilyconstructed the haulingropc is apt to be destructively compressed.

In. this inventitm, which I term a (littercntial clip, I make use of theadvantages to be had from lever-arms ol' unequal length, and by varyingthe cli'll'ironcc in length of such lever-arms I am able to design mygrip or clip for a wide range of comprcssion on the hauling-rope.

In the drawings, Figure 1 shows my clip or grip applied to a carriam) ona doublc-l'opt system or one in which the carriage runs upon atrack-rope on other track and is drawn by a hauling-rope, usuallybclowthe track or trz'iclcrope. Fig. 2 is an enlarged side view of my clip orgri in a position taken at the uncouplingrails. Fig. is a plan view ofthe cl1p or grip on the same scale as Fig. .2. Fig. 1 isa nwdilicationol' the clip or grip for a double-ropeway s cm, while Figs. ,5 and 6 aremodifications appli cable to a single-ropcway system.

In Fig 1, which broadly illustrates the invention, 1 is the track ortrack-rope of a double-ropeway system 2 is a carriage-wheel or one of apair of carriagc-wlreels running on and hung upon the tracker track-ropeand journal ed on an axle in the carriage frame. or hanger 3. The hanger3 hitched to the long and short arm members 5 and 6 of the clip or gripby a clip-pin 4, upon which pin 1 longitiulinally.

the hauling-rope.

3, 5, and 6 are free to turn. The free end of the member 5 is rotatablyconnected on the head of the hook of the receptacle or car by a pin 11,rotatably iixcd into a cross-pin 10, bossed into the head of 14. Thefree end of the member 6 is likewise connected to a pin 9, and thushinged in a )in 8, (see Fig. 2,) which is bossed. into 14, but is freeto move At the end of the in 10 is a small wheel 13. 12 is one of a Janof small wheels j ournaled on the ends 0' a T-shaped carrier -rigidlyconnected to and movable with the sliding pin 8.

The operation of the grip or clip will be more clearly understood byreference to Fig.

2, in which the members 5 and 6 are shown in cl osc approxhrmtion andwith the j aws of the clip open. It will be seen, since the/leverarms ofthe grip 5 and 6 are dilierent in length, that a common verticalmovement of the free ends of1hese lever-arms will necessarily cause thelevers to describe different angular distances and the dillerenee inangular travel of the members 5 and 6 will be a function of theirdifference in length. In other words, the arms in moving a givenvertical distance move over angles 01 which this vertical distance is asine function, and since the radii are different, the angles of travelmust necessarily vary. Thus it will be seen that the eileet of theWeight of the supporting member 14 or of the weight carried by 1+1 willbe to cause the jaws of the grip to be ap 'n'oximated with a force whicha function of the difference in the length of the lever-arms and of theapplied weight at thcirfrce end. Obviously by modifying the differencein. length of the arms any desired degree of grip or compression on thehaulingrope can be attained.

in Fig. 2 uncoupling-rails 15 and 16 are indicated engaging,respectively, the wheel 13 and the pair of wheels of which 12 is one.These uncoupling-rails are so disposed at a stat ion as to relieve theclip members from the weight of the hook 14 and the load susl tained byit by lifting the member 14:. This,

as seen in Fig. 2, decreases the angle between 5 and 6 and opens thejaws of the clip, so that the carriage may be completely freed fromObviously the supporting-rails 15 and 16 are suitably inclined at theirends it the track or traclcrope is horizontal orotherwise disposed ifthe track or track-rope" is inclined, so as to properly engage thewheels 13 and: 1212.

In- Fig.3 the'pla'n. View of the clip or, grip, the wheels'12 i2, andtheir supporting-cer- .'ier Shire shown, end-else the rope 7, heldbetween the jaws oi. the clip;

it will seen that the is hinged"direotiy to the r5 movement in the lowerend oi the hanger lThe carriage member 14% instead of being ettached tothe free ends or? the le in 'Figs. 1 and 2, is journeled on-the is ofthe clip member Instead of the Wheels 13 end 2O 12, supported at or nearthe free ends ot the clip members, in this case thereere s pair ofwheels, one of which is shown at 12. j ournslod upon extensions of theclip-pin itself. Therefore only it single uncoupling-mil is necessary 5'to relieve the cli members of the weight upon 14. In "of icr ords, theclip is reversed. Though this design is more simple than the one justdescribed, slipping may occur on steep glories whenever in the case oi e3 track-rope there is siifiicicnt to allow part ofihe'weight to be takenby the haulingrope, and the design best adapted for use in those-caseswhere the track or track-rope is sufiiciently rigid;

,5 In Figs. and 6 modification is shown for .use where there is no trackor track-rope;

but sin'iply a hauling-rope. The action of the clip or grip is identicalin principlevitb that already shown. (in "a main s de it) 4 tl'irougbthe head of the men' lmr 14 is journeled e sup )orting-ring 20,to'whicli'is hinged the short clip member 6 by it pin 9, and to aslidingpin it) is hinged tho'niomber by a. pin 11'. it will bonoticcd that thejaws of the clip engage the rope from shove. on

the axle If is also journaled e member 22,

carrying at its upoer brunt-bod end, as shown in Fig. 6, twowireels'liZ. '12. There is a hand e .21 on the suppm";ir'ig-ring bywhich 5 the clip maybe rotated on the axle l9. The

bracket 22 is elsocnpsble of rotation on '19 through a certain angulardistance in onedirection, but in the other direction must re" yolve withthe clip.

free to move at its axis indcpez'ident of the clip in one directiononly. As shown in Fig.

6, an arm 17 carried by the lower extension of the bracket momboriZZ,crigsigose spring which tends tol'orce the handle 2] and the member 22into alinoment end to bring'tbe aims of the Wll((.lS l2 lT'into aposition at .cqual distances from the hauling-rope.

As shown in Fig. (i, when the carriage eopreaches :in uncouplingreil, us15', lilo 5 Weight of the 'car will be taken by the mil Fig. i'shows emodification of the clip or :9. l und'Z, is 5 and (5 in- 'er member inother words, it is stones and the clip will operiby the Weight of itsparts Similarly, in'sttnching a car to the hauling-rope the our can. berun out on the rail 15 and the clip turned by the handle 21 intoposition for engaging the rope, and as wheels leave the supporting-rail15 the Weight oi" the load will cause the clip to engage the rope. Thenotion oi the spring will then draw the'su wetting-bracket 22 into linewith t he br ndle 21 or'into its normnlposition, so that the Wheels 1212 will not be. n the Way when'the grip runs over supporting-pulleysofthe ropewny.

i: do not confine myself to the specific construction shown, since it isobvious that verious modifications could be used in practice withoutdeparting from the spirit of the invention. Nhile thrive shown severalmethods of applying the supported weight to the clip system, both at theaxis of the clip and at the frcecnds oi the clip-levers, it is obviousthat other methods of ,zittziching the Weigl1t't the clipend ofattaching the traveling carriage or trolley could housed withequal.e'iiiciency, still retaining all of the adventziges to be had bythe use of the differ-, enlisl lover-zirms of the clip. I

.liziving described myinvontion, What" I claim isi 1. In apparetusoi the(hiss described, a grip formed of two jztW-levers'oi' difl'ercnt lengthflexibly connected to the carriage in such manner as to be moveddiileronlisi snguler distances by a common vertical movenient of theirfree ends.

2. in apparatus of the class described, a. grip, formed of two levershaving a common axis and their shorter ends formed into jaws and -meansfor causing said levers to move different sn 'uler distances for s'givencommen vcrticel'movemcnt of their longer ends.-

3. In epperetus of the class described, e-

rip fiiwrrned of two mutuelly-journ'eled jew evers of difierentiellength and means for moving said levers an unequal angular (lis-.

tense for a given common vertical'displacement of theirfree-ends. 1 r s4. In apparatus of the .cless'de'scribed, a rope-grip formed of twolevers having a com.-

rno'n ILXIS, e jaw formed on one end of eachlever, and means for causingsaid levers to move in the some direction difl'erentisl enguln-rdistances when their free ends erexliplaced vertically a. commondistance.

'. v5. in apparatus of the class described, a

' arm.

6. in apparatus of t e class (lQSGlll M-l. a

"supporting member, s; it or iiingn'idto tilfii'uffi r part thereof, :1,second lover h'i'nQt-d to the upper part hereof by an axis capable of motion i'zorinel to its length, a common fulcrum for said. levers and jawsformed in said levers beyond slaid fulcrum.

7. 'In apparatus'of "the class described, a supportin member, a leverhingleld to the upper part t ereof, a second lever 'nged to t e upperpart thereof by an axis capable of motlonn'ormal to its length, a commonfulcrum for said levers and jaws formed in said levers beyond saidfulcrum and means for relieving 881d! lev'ersof the weight of saidsupporting member at terminal stations.

8. In apparatus of the classdescribed, a clip or grip for rope composedof two clip members having a common axis and leverarms of diflerentlength, a supporting member flexibly connected to the free ends of such1evera1fm s, and means for relieving such lever-arms of the weight ofsuch sup-. porting member at terminal stations,

:9. In apparatus of the class described, a. clip or; grlp'for e aging arope composed of two cl p members aving a common axis and lever-arms ofdifierent length, and means for I? operating said clip by thedifierential' action of the sustained Weight on the free ends of suchlever-arms. v 10. In a rope-gri jaws formed by the ends ofmutually-hmged levers of unequal len th and means for causing the freeends of said levers to move equal distances in a common direction, butdifierent angular distances, .11. In a rope-grip, a pair ofmutuallyhinged levers each provided with a jaw, said jaws respectivelyapproximated, and means for causing said levers to move differentialangular distances under the efiect of a Weight applied to their freeends.

Signed by me at the American Embassy at Tokyo, Japan, this 12th day ofNovember, 1906.

YUSUKE TAMAMURA;

Witnesses:

Urmom ISBMARA, GEO. H. SOIDMORE.

